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Over the past few post's I've introduced data structures for representing Context Free Grammars from BNF, algorithms for computing First sets of those CFGs, and algorithms for computing the follow sets to accompany them. With that, we have everything n

Having previously discussed the data structures needed for representing a context free grammar as well as a method for computing the 'First' set, in todays post I will cover constructing the 'Follow' set. The follow set, as it's name would imply, is th

I recently had a few wifi-enabled microcontrollers (ESP32) dropped into my lap, and with a bit of free time, set out to find a use for them, and barring that, at least have some fun playing around with them.

When constructing a recognizer or parser from a context free grammar there are some properties of the language which must be calculated from the grammar irregardless of the type of parser being developed. Two such properties which make the automatic ge

The relation between stacks and expression evaluation is well established. Stack based evaluation is employed by every computer at some level. Infix and Postfix expressions lend themselves naturally to evaluation with a stack. But what about the stacks